Bottle Weaning

If you have or are in the process of bottle weaning, what sippy cup(s) are you using? Bonus if it is dishwasher safe!

I just tried a brand new Munchkin weighted straw cup with whole milk since my little is used to that sippy for water and I'm not sure if it's a bad sippy or if milk just shouldn't be put in it, but she drank a little from it and then stopped so I tried and I had to suck super hard to get any out! Her water sippy, while very used, isn't nearly that hard to suck out of.